UUID

 // 创建一个UUID
    QUuid id = QUuid::createUuid();

    // 将UUID转换为没有横杠和花括号的字符串形式
    QString uuidString = id.toString();
    uuidString.remove(QChar('-')).remove(QChar('{')).remove(QChar('}'));
    // 输出结果
    qDebug() << "uuid:" << uuidString;

qt生成UUID